Campaign : Calwater Field Campaign

2011.02.01 - 2011.03.07

Lead Scientist : Kimberly Prather

For data sets, see below.


The goal of this project involved determining how aerosols impact clouds and precipitation patterns in California. Specifically flights were conducted through precipitating and non-precipitating clouds to determine whether there were chemical or physical differences in the cloud nuclei forming the clouds. The sources of the key cloud seeds were determined using single particle mass spectrometry. Cloud physics and chemistry were probed in addition to high level meteorological data. Met data were acquired during flights as well as at several sampling ground level sampling sites. The goal was to unravel the key parameters leading to high levels of rain and snow in California versus sustained cloud cover with very little precipitation.

Campaign Data Sets

IOP ParticipantData Source DescriptionFinal Data
TomlinsonVideo Order Data
TomlinsonCondensation Particle Counters Order Data
NenesCloud Condensation Nuclei Counter Order Data
JonssonLiquid Water Content (pvm-100a probe, SEA WCM-2000) Order Data
HubbeMeteorology/State/Position Parameters- G1 Aircraft Order Data
ComstockHigh Volume Precip Spectrometer Order Data
JonssonCloud and Aerosol Spectrometer (CAS) Order Data
RobertsMini CCN Spectrometer Data Order Data
ChandNephelometer Order Data
Comstock2D-Stereo Optical Array Probe Order Data
PratherAerosol Time-of-Flight Mass Spectrometer Order Data
YuTrace Gases Order Data
JonssonCloud Imaging Probe Order Data
TomlinsonPassive Cavity Aerosol Spectrometer Order Data
TomlinsonCloud Droplet Probe (CDP) and Cloud Spectrometer and Impactor (CSI) Order Data
ChandParticle Soot Absorption Photometer Order Data
DeMottContinuous Flow Thermal Diffusion Chamber Order Data
TomlinsonUltra High Sensitivity Aerosol Spectrometer Order Data